What does excessive heat input during welding risk?

Excessive heat input during welding can significantly increase the risk of material distortion and warping. High temperatures can lead to expansion in the metal being welded. When the weld cools, this can result in a contraction that may not be uniform across the joint, leading to changes in shape, loss of dimensional accuracy, and potential functional issues in the final assembly. Distortion is especially critical in precision applications where tight tolerances are crucial.

Understanding this phenomenon is vital for welders, as managing heat input is essential for maintaining the integrity of the welded joint and the overall workpiece. Effective heat management ensures that the welds achieve the desired properties without compromising the geometry or structural integrity of the materials involved.